QTRX · Quanterix Corp · Insider Trading

$3.78 -0.03 (-0.87%)

Russell 2000 member Rebalance outlook locked

Market Cap

$154.65M

47.29M

Volume · Oct 5 1.03M Avg daily vol (3M) 755.53K

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.

Query insider transactions through the insider trading API or MCP →

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

Net shares bought

0.21%

Net buy value

+$286,354

Date	Insider	Role	Type	Security	Shares	Price	Value	After
2026-10-02	Magovcevic-Liebisch Ivana	Director	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On October 2, 2024, the reporting person was granted 12,800 restricted stock units, vesting 33%, 33%, and 34% on the first, second, and third anniversaries of the grant date, respectively.	Restricted Stock Unit	4,224	—	—	4,352
2026-10-02	Magovcevic-Liebisch Ivana	Director	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	4,224	—	—	15,883
2026-10-01	Mendel Scott	Director	Award↑ Filing footnotes — Common Stock (Direct) Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the third quarter of 2026.	Common Stock	4,398	$3.41	$14,997	28,454
2026-10-01	DONNELLY WILLIAM P	Director	Award↑ Filing footnotes — Common Stock (Direct) Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the third quarter of 2026.	Common Stock	6,964	$3.41	$23,747	169,365
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	834	—	—	38,701
2026-09-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	249	$2.72	$677	38,452
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On February 2, 2024, the reporting person was granted 6,494 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	135	—	—	2,306
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On February 4, 2025, the reporting person was granted 40,036 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	834	—	—	24,189
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	372	—	—	37,978
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On May 21, 2024, the reporting person was granted 17,878 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	372	—	—	7,457
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	135	—	—	37,647
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On March 15, 2023, the reporting person was granted 6,566 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	136	—	—	845
2026-09-15	Gute James Edward Jr.	Chief Commercial Officer	Award↑ Filing footnotes — Restricted Stock Unit (Direct) On September 15, 2026, the reporting person was granted 260,315 restricted stock units. The RSUs vest in four equal annual installments on the first four anniversaries of the grant date, subject to the reporting person's continued employment with the issuer or one of its subsidiaries through the vesting dates.	Restricted Stock Unit	260,315	—	—	260,315
2026-09-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	111	$2.72	$302	37,867
2026-09-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	41	$2.72	$112	37,606
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	81	—	—	37,442
2026-09-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	41	$2.72	$112	37,512
2026-09-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	25	$2.72	$68	37,417
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On February 6, 2023, the reporting person was granted 3,929 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	81	—	—	436
2026-09-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	136	—	—	37,553
2026-08-31	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On September 23, 2022, the reporting person was granted 6,278 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the last day of each month thereafter.	Restricted Stock Unit	159	—	—	0
2026-08-31	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	48	$2.67	$128	37,361
2026-08-31	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	159	—	—	37,409
2026-08-19	Elliott Jeffrey Thomas	Director	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	3,955	—	—	15,345
2026-08-19	Elliott Jeffrey Thomas	Director	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On August 19, 2024, the reporting person was granted 11,985 restricted stock units, vesting 33%, 33%, and 34% on the first, second, and third anniversaries of the grant date, respectively.	Restricted Stock Unit	3,955	—	—	4,075
2026-08-17	DONNELLY WILLIAM P	Director	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On August 17, 2023, the reporting person was granted 8,238 restricted stock units, vesting 33%, 33%, and 34% on the first, second, and third anniversaries of the grant date, respectively.	Restricted Stock Unit	2,802	—	—	0
2026-08-17	DONNELLY WILLIAM P	Director	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	2,802	—	—	162,401
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	372	—	—	36,776
2026-08-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	111	$2.59	$287	36,665
2026-08-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	25	$2.59	$65	36,215
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	136	—	—	36,351
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	81	—	—	36,240
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	135	—	—	36,445
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On March 15, 2023, the reporting person was granted 6,566 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	136	—	—	981
2026-08-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	249	$2.59	$645	37,250
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On February 4, 2025, the reporting person was granted 40,036 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	834	—	—	25,023
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On February 6, 2023, the reporting person was granted 3,929 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	81	—	—	517
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On February 2, 2024, the reporting person was granted 6,494 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	135	—	—	2,441
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Unit (Direct) On May 21, 2024, the reporting person was granted 17,878 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter.	Restricted Stock Unit	372	—	—	7,829
2026-08-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	41	$2.59	$106	36,404
2026-08-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	41	$2.59	$106	36,310
2026-08-15	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	834	—	—	37,499
2026-08-13	DONNELLY WILLIAM P	Director	Buy↑ Filing footnotes — Common Stock (Indirect) The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.85 to $3.13, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Owned jointly by trusts established by the reporting person and his spouse.	Common Stock (I)	72,245	$2.93	$211,678	99,400
2026-08-12	DONNELLY WILLIAM P	Director	Buy↑ Filing footnotes — Common Stock (Indirect) The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.58 to $2.95, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Owned jointly by trusts established by the reporting person and his spouse.	Common Stock (I)	27,155	$2.75	$74,676	27,155
2026-07-31	Miller Michael Francis	Chief Operating Officer	Convert↓ Filing footnotes — Restricted Stock Units (Direct) On September 23, 2022, the reporting person was granted 6,278 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the last day of each month thereafter.	Restricted Stock Units	130	—	—	159
2026-07-31	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	39	$3.48	$136	36,159
2026-07-31	Miller Michael Francis	Chief Operating Officer	Convert↑ Filing footnotes — Common Stock (Direct) Restricted stock units convert into common stock on a one-for-one basis.	Common Stock	130	—	—	36,198
2026-07-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	41	$4.24	$174	35,222
2026-07-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	111	$4.24	$471	35,483
2026-07-15	Miller Michael Francis	Chief Operating Officer	Tax↓	Common Stock	25	$4.24	$106	35,033

Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)

Showing 1–50 of 1,209 transactions

Key facts CIK 1503274 CUSIP 74766Q101 13F (30d) 2 filings 2 filers Visit website Investor relations